1. Put your egg in you party.I remember a topic posted here about being able to see an egg's nature by depositing it or something like that. Could someone please give me a link to that topic or explain to me how it works?
2. Place a Pokémon you don´t care about in the space to the left of it.
3. Go to Bebe's PC and release the Pokémon to the left of egg. By watching the little box in the lower left corner that tells you the nature, ability and such you can time the release so that the box will show the nature when the egg is automatically moved to the spot where the released Pokémon was. If you time it right the box will show you a quick glimpse of the egg's nature.